Flash goes over the left eye.

• A. False
• B. True
• C. Not Specified
• D. Only during training

Answer: (B)

Understanding how a stimulus is applied in pupillary light reflex testing. The flash going over the left eye is the expected setup because the procedure directs the light to a specified eye to elicit a direct response in that eye and a consensual response in the other. This targeted stimulation helps verify the integrity of the afferent pathway (from the retina to the brain) and the efferent pathways (from the brain to the pupils). Seeing a response when the left eye is flashed confirms the test is being performed correctly. The other options don’t fit because they would contradict the standard practice, imply ambiguity, or suggest the scenario only occurs in training, which isn’t the case here.